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Mehdi Haghgoo

03/23/2021, 12:28 PM
What kind of inheritance is this? I see it in Compose docs, but can't find its usage on Kotlin docs. Can a subclass (object) be defined inside the parent class?
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sealed class Screen(val route: String, @StringRes val resourceId: Int) {
    object Profile : Screen("profile", R.string.profile)
    object FriendsList : Screen("friendslist", R.string.friends_list)
}
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Marc Knaup

03/23/2021, 1:16 PM
It’s normal inheritance. The only difference is that you can be sure that 
Profile
and 
FriendsList
are the only subclasses of 
Screen
and there are no others. That’s because it’s 
sealed
. https://kotlinlang.org/docs/sealed-classes.html
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Mehdi Haghgoo

03/23/2021, 5:11 PM
I don't know why the linked doc does not have an example like the given snippet.
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